| Time For Three Revolutions (time in seconds)
Standard Undercarriage |
Actual | |||||
|---|---|---|---|---|---|---|
| Sales model | Travel Mode (Forward and Reverse) | Specification | Forward | Reverse | ||
| 307.5 | Rubber Track | HIGH | 10.0 - 12.3 | |||
| LOW | 15.5 - 19.9 | |||||
| Steel Track | HIGH | 10.0 - 12.4 | ||||
| LOW | 15.7 - 19.8 | |||||
| 308 | Rubber Track | HIGH | 13.4 - 13.8 | |||
| LOW | 21.3 - 21.6 | |||||
| Steel Track | HIGH | 13.8 - 15.4 | ||||
| LOW | 22.7 - 23.7 | |||||
| 308 CR | Rubber Track | HIGH | 11.2 - 12.6 | |||
| LOW | 18.4 - 20.1 | |||||
| Steel Track | HIGH | 11.4 - 12.3 | ||||
| LOW | 18.5 -20.0 | |||||
| 308 SR | Rubber Track | HIGH | 11.2 - 12.6 | |||
| LOW | 18.4 - 20.1 | |||||
| Steel Track | HIGH | 11.4 - 12.3 | ||||
| LOW | 18.5 - 20.0 | |||||
| 308.5 | Rubber Track | HIGH | 13.8 - 15.4 | |||
| LOW | 22.7 - 23.7 | |||||
| Steel Track | HIGH | 14.2 - 14.7 | ||||
| LOW | 22.9 - 23.6 | |||||
| 309 | Rubber Track | HIGH | 12.1 - 13.0 | |||
| LOW | 29.9 - 31.4 | |||||
| Steel Track | HIGH | 11.9 - 13.8 | ||||
| LOW | 30.1 - 30.6 | |||||
| 310 | Steel Track | HIGH | 11.5 - 12.4 | |||
| LOW | 27.9 - 31.4 | |||||
Note: The engine speed and/or the machine configuration that is used during this test can affect the results of this test.
Reference: Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for the engine speeds that were used for this test.
Reference: Testing and Adjusting, "Operational Checks" for the machine configurations that were used for this test.
The relief valve pressure settings must be set to the relief valve pressure specification before performing this operational check.
Reference: Testing and Adjusting, "Specifications".
Note: When the procedure for the Travel on Level Ground cannot be performed, this test may be used as a substitute.
| Required Tools | |
|---|---|
| Description | Qty |
| Stopwatch | 1 |
- Ensure that travel test ground must be hard and as level as possible.
- Ensure that travel control levers can be fully shifted.
- Support the machine so that both tracks are lifted off the ground.
- Start the engine.
- Increase the hydraulic oil temperature to
55° ± 5°C (131° ± 9°F) . - Put a mark on a shoe of each of the raised tracks.
- Place the engine speed dial in the HIGH IDLE position.
- Place the travel speed control switch in HIGH position.
- With the machine supported off the ground, move the travel levers to full travel position.
- Measure the time that is required for the tracks to make three complete revolutions. Measure the time that is required in each direction.
- Place the travel speed control switch in the LOW position and repeat Steps 6 through 7.
- Check the recorded times and compare the times with the values listed in Table 1.
Note: With the travel control levers fully shifted, travel turn should be insignificant when either the stick cylinder or bucket cylinder is activated.
Note: Right and left travel control levers shall return to NEUTRAL position from any PARTIALLY or FULLY shifted position.
Note: Both tracks shall start to move simultaneously when both travel control levers are shifted together.